Prox Piston Kit - 525cc 4-stroke Engine
Prox Piston Kit - 525cc 4-stroke Engine
Available in stock (7)
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Estimated delivery: Feb 05 - Feb 09
About this product
About this product
Upgrade your 4-stroke engine with this high-performance Prox Piston Kit. Designed for optimal performance and longevity, this kit provides all the necessary components for a complete piston replacement. Experience improved power and reliability with this precision-engineered kit.
Description
This Prox Piston Kit is designed for 520cc and 525cc 4-stroke engines, delivering enhanced performance and durability. The piston is crafted from a low-expansion, low-friction aluminum alloy, ensuring minimal wear and optimal heat dissipation. Precision machining on state-of-the-art CNC equipment guarantees exact tolerances and a perfect fit. The standard size C piston with a 94.96 mm diameter, combined with an 11.0:1 compression ratio, provides improved engine efficiency and power output. This kit is ideal for both enthusiasts and professionals looking to rebuild or upgrade their engines.Features & highlights
- Complete kit includes piston, rings, wrist pin, and circlips for a hassle-free installation.
- Precision CNC-machined for exact tolerances and optimal fit.
- Manufactured from low-expansion, low-friction aluminum alloy for improved performance and longevity.
- Designed for 520cc and 525cc 4-stroke engines, enhancing engine efficiency.
- Standard size C piston with a 94.96 mm diameter, providing a perfect fit and optimal performance.
- 11.0:1 compression ratio optimizes engine power and fuel efficiency.
Technical specifications
- Brand: Prox
- Part Number: 01.6521.C
- Engine Type: 4-Stroke
- Displacement: 520 cc, 525 cc
- Bore Size: 95.00 mm
- Piston Size: 94.96 mm
- Compression Ratio: 11.0:1
- Piston Material: Aluminum Alloy
- Skirt Coating: Non-Coated
- Type: Standard Size C
Important to know
This kit is a standard size replacement. Ensure compatibility with your specific engine model before installation.
Shipping & Return
Shipping & Return
Free shipping to GLS parcel shop parcel box for purchases over DKK 1,000.
GLS home delivery costs DKK 59.
We do our best to ship your order as quickly as possible. All orders are generally packed within 24 hours on weekdays.
There is a 14-day return policy. Read more
Parts Denmark Info
Parts Denmark Info
Parts Denmark is a new webshop based in Denmark. We have a physical location you can visit (No showroom yet), and we have both email and phone support in our opening hours.
Our company info is:
Parts Denmark ApS
VAT: DK45974758
Dam Holme 11
3660 Stenløse, Denmark
hello@partsdenmark.com
+45 222 333 29
Best regards,
William Svendsen & Martin Høyer (Owners)
Specifications
PROX
01.6521.C
Piston Kit
95,00 mm
11.0:1
520 cc, 525 cc
Aluminum Alloy
94.96 mm
Non-Coated
4-Stroke
Standard Size C
Kit


Who is behind Parts Denmark
Martin and William are the duo behind Parts Denmark — an unlikely but awesome combo of a tech-savvy young IT wizard and a seasoned motorcycle guru who’s seen (and fixed) it all. Together, we’ve built a team with big ambitions, plenty of passion, and a shared mission to create great things — side-by-side with you.

